From the cyclical monthly high in interest rates in the 1990-91 recession through June of this year, the 30-year Treasury bond yield has dropped from 9% to 3%. This massive decline in long rates was hardly smooth with nine significant backups. In these nine cases yields rose an average of 127 basis points, with the range from about 200 basis points to 60 basis points (Chart 1). The recent move from the monthly low in February has been modest by comparison. Importantly, this powerful 6 percentage point downward move in long-term Treasury rates was nearly identical to the decline in the rate of inflation as measured by the monthly year-over-year change in the Consumer Price Index which moved from just over 6% in 1990 to 0% today. Therefore, it was the backdrop of shifting inflationary circumstances that once again determined the trend in long-term Treasury bond yields.